I currently am trying to get a developer job. I’ve seen some developers/youtubers say to put a face on your resume. I’ve asked my coworkers what they think about it and they say that it’s weird to do that. What do you guys think? Would it help?

I’m in the UK, CV with a portrait would be seen as strange, a novelty. What you look like in that picture (and, for many countries, that picture existing) will bias hiring decisions because people are people. You should avoid, as much as is possible, things that bias decisions